Treating sole channels



' Jan. 28, 1936. -1 B HADAWAY 2,028,831

TREATING SOLE CHANNELS Original Filed Sep't. 26, 1952 2 Sheets-Sheet 1 Jan. 28, 1936.

J. B. HADAWAY 2,028,831

TREATING SOLE CHANNELS Original Filed Sept. 26, 1932 2 Sheets-Sheet 2 /AMQA/TU@ 36km 63 Haw Bg l Patented Jan. 2s, i936v UNITED STATES PATENT OFFICE TREATING SOLE CHANNELS Application September 26, 1932, Serial No. 634,897

Renewed June 22, 1933 3`7 Claims.

This invention relates to machines for and methods of applying cement. In its machine aspect, the invention is herein illustrated as embodied in a machine for coating the channels of 5- shoe soles and the novel method provided by the invention is set forth with special reference to its performance with the aid of the machine.

It is customary 'in the manufacture of various styles of boots and shoes, such for example as Goodyear welt shoes, McKay sewed shoes and Littelway shoes, to provide a channel in the outsole extending from a point near its edge inwardly and producing a lip or ap which is turned back to permit the insertion of the line of fastenings in this channel thereby to unite the sole to the upper. After the sole has been attached, cement is applied to the channel flap and to the bed of the channel and the iiap is laid and secured in place by the cement. Such opened or backturned channel flaps are apt to become dry and stiff and do not furnish a regular or uniform surface for the application of cement. Furthermore, around the curved portions of the shoe, as at 4the toe, the flap is usually pressed into folds when it is turned back on to the sole, thus providing an even more difficult surface for the application of cement. ployed for the application of cement to channels and have the advantage, especially when latex cements are employed, of being readilycleaned. When such solid or rigid rolls are employed, it is customary to provide special means for holding the channel flap in firm contact with the applying roll so that the cement will reach all portions of this uneven and sometimes wrinkled surface.

Accordingly, it is a broad object of the invention to devise an improved method of treating lchanneled shoe soles to the end that the channel flaps may be held rmly in place when pressed back into normal position upon, the sole, and may then cover completely the bed of the channel.

This method is characterized tion of cement to the inner surface of the flap and the simultaneous stretching of the flap widthi wise, as illustratively vdescribed herein. The stretching of the ap is accomplished by rubbing pressure applied to the outer face of the ap in one direction only.

U Another important object of the invention is to provide, in a channel-cementing machine employing a rigid applying roll, an improved arrangement for holding the channel flap in engagement with the applying roll.

As taught in Letters Patent of the United Solid rolls have been eml by the applicaperipheral surfaces in contact with the bed of the channel and with the other, and usually the outer, peripheral surface in contact with the adjacent surface of the opened channel flap. In accordance with a feature of the invention a powerdriven, movable flap-engaging tool is provided which cooperates with the applying roll by holding the channel flap in engagement with one surface, illustrated as the outer peripheral face of the roll. This tool may take the form of a feed roll and, in feeding the work, the flap is gripped between the feed roll and the applying roll.

Still another feature of the invention resides 'in the provision of a feed roll, for cooperation with the applying roll, which is substantially conical in shape, being illustrated as tapered to a small outer end which is rounded. By reason of this tapered construction, the feed roll may be readily thrust into the corner between the surface of the sole and the back-turned channel flap, thereby to lift the flap into engagement with the applying roll. As illustrated also, the feed roll is mounted upon an axis inclined downwardly and inwardly toward the applying roll whereby it is out of the way of the operator and can readily be inserted beneath the opened channel flap.

In view of the nature and condition of the channel flap which must be held in smooth engagement with the applying roll, and in accordance with another important feature of the invention, driven means is provided for stretching the channel flap widthwise. illustrated, a grooved power-driven feed roll is utilized to stretch the flap widthwise. As illustrated also, this feed roll is conical and is spirally fiuted, and serves simultaneously to hold the ap in engagement with the applying roll, to feed the work by gripping the flap, and to stretch the flap widthwise.

To facilitate the presentation of a piece of work to the machine the Hap-engaging tool is laterally displaceable, being mounted for bodily displacement. This iiap-engaging tool, illustrated as a power-driven feed roll, is illustrated as journaled in a slidable bracket. Provision is made for transmitting power to said roll in any position of adjustment of the bracket. illustrated, the feed roll is urged toward the ap- To this end and as Further, as

, Fig. 1.

plying roll by resilient means such as a spring and provided with operator-controlled means for laterally displacing the roll against the tension of the spring, and without interrupting the driving means.

Variations in the thickness of soles and accommodation for different angular positions of the vwork as it is presented to the applying roll is provided, in accordance with another feature of the invention, by making the flap-engaging tool upwardly yieldable.

These and other features of the invention are more fully described in the following specification taken in connection with the accompanying drawings, in which Fig. 1 is an angular view of a portion of my channel-cementing machine showing a piece of work presented to the machine, thereby to lperform my novel method; y

Fig. 2 is an end View showing partof the drive lfor the work-contacting feed roll;

Fig. 3 is a front elevation of the machine with parts broken away and in section;

Fig. 4 is a rear elevation showing the slidable bracket upon which the feed roll is mounted; and

Fig. 5 is a fragmentary vertical section through the axis of the feed roll.

The machine is provided with a frame I0 supporting a cement tray I2 to which latex or other cement may be supplied from an inverted bottle I4, being kept at a substantially constant level in the tray thereby. The machine is of the general typeshown in Letters Patent of the United States No. 1,851,162, granted March 29, 1932, upon an application filed in the name of John W. Cosgrove, deceased, and reference may be had to this patent for a description of parts of the machine not herein fully shown and described. The cement is picked up from the tray l2 by a grooved pick-up roll I6 upon a shaft journaled in the frame |0 of the machine. For convenience in manufacture this grooved roll may be made of two frusto-conical parts held together by screws I8. The quantity of cement picked up is determined by a power-driven doctor roll 20 the position of which with respect to the pick-up roll I6 is determined by a wing nut 22. From the pickup roll I6 the cement is delivered to a transfer roll 24 and thence to a delivery roll 26 mounted upon a shaft 2'I parallel to that of the pick-up roll. These rolls are driven in the same direction of rotation as indicated by the arrows in The rolls |6, 24 and 26 constitute a series of rolls for lifting the cement over the edge of the tray and delivering it to a ridged applying roll 30 having angularly related peripheral surfaces. The rolls of the series are alternately ridged and grooved, being complemental to one another and driven from a shaft 32 by means of trains of gears 34. A cover 35 (Fig. 3) is provided for the tray I2 and some of the rolls.

The rigid applying roll 30 has angularly related peripheral surfaces, forming a ridge to enter the channel while these surfaces are adapted to coat the channel bed and the adjacent, inner surface of the channel ap. It is preferably knurled or pocketed to enable it to carry an ample quantity of iiuid cement such as latex and is mounted upon a substantially horizontal shaft 36 journaled in an arm 38. This arm 38 is pivoted upon a transverse horizontal pin 50 to permit therelation of the applying roll to the delivery roll 26 to be adjustably determined by means or a hand screw ft2, thereby furnishing another means for controlling the quantity of cement applied to the work. The arm 38 is held against the screw 42 by a spring 44 which cooperates with a downwardly extending portion 46 of the arm.

Upon the back side of this arm 38 is slidably mounted a bracket 50 supporting a substantially conical feed roll 52, said roll being adapted to engage the outer face of the channel flap to hold it in engagement with the outer peripheral face of the applying roll 30. The roll 52 tapers downwardly to a small end |50 which is rounded. A spring 54 is connected to an arm 56 which is secured to a pivot pin 58 passing through a lug upon the arm 38. Fastened to the other end of this pivot pin 58 is a bell crank 59 the upper end of which has a pin extending into a slot in the slidable bracket 50. 'Ihis spring 54 is effective to move the bracket 50 toward the left in Fig. 4, or toward the right in Figs. 1 and 3, to urge the feed roll 52 into Contact with the outer face of a channeLiiapturned back from the bed 62 of the channel in a sole 64 which has been attached to the upper of a shoe mounted on a last 66 by means of a row of fastenings such as stitches 68. Movement of the bracket to carry the feed roll 52 toward the applying roll 30 is limited by a stop screw 10 passing through a tail 'I2 upon the arm 56 to which the spring 54 is attached. The end of this screw 'I0 engages a suitably positioned surface upon the roll-carrying arm 38. The lower arm of the bell crank 59 is connected to an operator-controlled treadle (not shown) by a rod I6 connected to a short lever 'I8 to which there is joined a rod 80 extending to the treadle (not shown), The lever I8 is pivoted on a screw 'I9 threaded in an enlargement 82 of a plate 84 secured between the frame I0 and a column 86 upon which the frame is mounted. A portion 83H of the enlargement 32 receives a screw 90 fastened to the lower end of the spring 54 and serves as an abutment for an adjusting nut 92 upon said screw. When the operator depresses the treadle connected to the rod 80, the bracket 50 carrying the feed roll 52 is moved outwardly away from the applying roll 30 against the tension of the spring 54, permitting the presentation of a piece of work with the channel flap 60 disposedbetween that roll 52 and the applying roll 30.

The bracket 50 is slidably mounted upon the arm 38 by being provided with a dovetail-shaped plate 94 received in a correspondingly shaped slot 96 (Fig. 2) formed between a portion of the arm 38 and a removable plate 98 (Fig. 4) attached thereto. Upon the outer end of the bracket there is secured a sub-frame |00 by means of a stud |02 (Figs. 2 and 4). In this subframe, forming as it does a. part of the bracket 50, is journaled the feed roll 52 and a series of driving gears therefor which may be protected, in the use of the machine, by a cover |04 (Fig. 3) a portion of which has been removed in Fig. 3 to expose these gears. In order that the driving connection for the roll 52 may not be broken by sliding movement of the bracket 50, a gear |06 is mounted upon a stub shaft |08, rotatable in the sub-frame |00 but held against lengthwise movement therein by a collar |09. This-shaft |08 is in axial alinement with the shaft 2'I of the delivery roll 26, and enters a recess in the end of the shaft 2l and is splined theretofthus permitting movement of the bracket 50 and subframe |00 without breaking the driving connection. From the gear |06 movement is transmitted to the feed roll 52 through a reversing idler mounted on a pin in the sub-frame |00, thence through a pinion |l2 secured upon one end of a shaft Ild extending through the subframe |00 and upon the outer end of which shaft there is secured a. miter gear H6. This miter gear ||E meshes with a miter pinion ||8 which is pinned to the upper end of an inclined shaft |20 (Fig. 5) journaled in the sub-frame |00. The

hub of the pinion ||8 is grooved at |22 to receive.

the forked ends |24 of an angle piece |26 clamped by a screw |28 to the sub-frame |00, thus holding the pinion I I8 and the shaft |20 against axial movement While permitting free rotation. The inner end of the shaft |20 is forked at |30 to receive the flattened end portion |32 of a shaft |34 integral with the feed roll 52. This shaft |34 has an enlargement or fiange |36 which normally rests against the upper end of asleeve |38 held in adjusted position by a set screw |50, thus adjustably limiting downward movement of the shaft. A spring |52 positioned in a recess in the sub-frame |00 bears against the flange |36, thereby normally to hold the feed roll 52 in the position shown in the drawings while permitting upward yielding movement thereof axially under pressure of the work either to accommodate a thicker sole or to facilitate turning the work as the latter assumes various positions in the hands of the operator.

The substantially conical shape of the feed roll 52 facilitates thrusting it beneath the backturned channel flap 60, best illustrated in Fig. 1, and its rounded outer end |50 enables this roll to be pushed well into the corner between the tread surface of the outsole 64 and the outer surface of the channel iiap 60, without damage to the sole. In view of the fact that this channel flap 60 may be in a wrinkled or somewhat crushed condition, and the further fact that it is desirable, if not essential, to bring it into smooth contact with the outer peripheral face of the applying roll 30, the feed roll 52 is fluted spirally, as indicated at |52, in such a direction that the rotation of the feed roll in the direction indicated by the arrow applied to the pinion ||B in Fig. 1 will be effective to stretch the ap width- Wise. At the same time the direction of rotation of the work-contacting portion of the feed roll 52 coincides with the direction of rotation of the work-contacting portion of the opposing applying roll 30 so that the channel fiap 60 gripped between these two rolls is fed forward, thus relieving the operator in the presentation of work to the machine.

In the use of the machine to perform the method, the operator will depress the treadle attached to the treadle rod-80, thus moving the bracket 50 to carry the feed roll -52 away from the applying roll 30 and facilitating the insertion of the channel flap 60 between the two. He then will release the treadle, allowing the spring .56 to thrust the feed roll 52l under the channel flap and bring the ap into firm contact with the applying roll and will move the work to present the whole length of the channel in the shoe sole to the applying roll 30. The inner peripheral surface of the applying roll will coat the bed 62 of the channel while the outer peripheral surface will coat the inner face of the channel flap 60. At the same time the feed roll 52 will be effective to hold the channel fiap in engagement with thc applying roll and to stretch it widthwise. The work, being held in firm and uniform contact with the applying roll 30, will receive a coating of cement, such as latex, of uniform thickness which will be spread over the whole surface of the bed 0f the channel and the inner face of the channel ap. The coacting rolls 30 and 52, driven in the direction indicated by the arrows, will cause the work to be fed forward and the feed roll 52 will rub the outer face of the channel flap in the direction away from the base of the ap to stretch this flap widthwise and will press it against the cement-coated surface of the roll 30. This stretching of the channel flap simultaneously with the application of cement to one face thereof will remove wrinkles from the ap and restore it to its normal width so that the channel bed 62 will be completely covered when the fiap is laid. Since this stretching of the flap occurs simultaneously with the application of cement, no delay is experienced and a separate operation is unnecessary.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for cementing the channels of shoe soles, a rigid coating-appling member hav ing angularly related peripheral surfaces adapted for engagement respectively with the flap and the bed of a channel in a sole, and a power-driven, movable fiap-engaging tool for holding the channel flap in firm engagement with one of the surfaces of the applying member.

2. In a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces adapted to Contact with the fiap and with the bed of the channel respectively. and a power-driven feed roll cooperating with said applying roll to hold the channel flap in engagement with one face of the applying roll as it feeds the work.

3. In a machine for cementing the channels of shoe soles, a ridged roll having angularly related peripheral faces the inner of which is adapted t0 coat the bed of a channel and the outer of which presses against a back-turned channel fiap as the ridge of the roll is pressed into the bottom of the channel, and an approximately conical power-driven feed roll adapted to be inserted beneath the back-turned fiap to lift it into contact with said applying roll.

4. In a machine for cementing the channels of shoe soles, an applying roll having angularly related peripheral faces for coating the bed of a channel and the adjacent face of a back-turncd channel ap, and a tapered power-driven feed roll having its small end toward the sole adapted to be thrust beneath the backturn ap to lift it into contact with said applying roll.

5. In a machine for cementing the channels of shoes soles, a rigid applying roll having angularly related peripheral faces forming an intermediate ridge, means for driving said roll to move with the work, a cement tray, a series of complementally shaped rolls coacting with said applying roll to transfer latex over the edge of the tray to said applying roll, and an approximately conical feed roll gripping the flap against one of the peripheral surfaces of the applying roll and driven in a direction to cooperate with the applying roll in feeding the work by engagement with thc flap.

6. In a machine for cementing the channels of shoe soles, an applying roll, a cooperating feed roll substantially conical in shape and rounded at its outer end. and means for thrusting said feed roll into the corner between the surface of the sole and the back-turned channel fiap thereby to hold the flap in engagement with the applying roll.

7. In a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces the inner of which is adaptedto contact with the bed of the channel and the outer'of which is adapted to contact with the inner face of the channel flap, and a feed roll cooperating with the applying roll mounted upon an axis inclined to the axis of the applying roll and extending downwardly and inwardly toward said roll. f

8. In a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces the outer of 'which is adapted to contact with the inner face of the channel nap, and a feed roll cti-operating with the applying roll mounted upon an axis inclined'to the axis of the applying roll and exi tending downwardly and inwardly toward said roll, said feed roll having a work-contacting por- 4tion which is substantially parallel to the workcontacting portion of the outer peripheral face of the applying roll thereby grip the ap between the applying roll and the feed roll.

9. In a machine for cementing the channels of shoe soles, an applying roll having angularly rrlated peripheral faces adapted to coav`titre bef. of a channeland the inner face of a channel flap, and driven means cooperating with theV outer face of the channel nap constructed and ar ranged to stretch the flap widthwise. f

10. In a machine for cementing the channels of shoe soles, an applying roll, a cooperating feed roll substantially conical in shape,v and means for thrusting said feed roll into the corner between the surface the sole and the back-turned channel ila-p thereby to hold the flap in engagement with the applying roll, the conical feed roll being constructed and arranged simultaneously to stretch the flap widthwise.

1l. In a machine for cementing the channels of shoe soles, an applying roll having angularly related .peripheral faces adapted to coat the bed of a channel and the inner face of a channel flap, and a grooved power-driven feed roil cooperating with said applying roll to grip the channel flap and effective to stretch the flap widthwise at the same time that it feeds the work.

12. In a machine for cementingthe channels of shoe soles, an applying roll having angularly related peripheral faces adapted to coat the bed ofra channel and the adjacent face of the channel ap, and a substantially conical power-driven feedroll cooperating with said applying roli to grip the channel flap, said feed roll being provided with spiral flutes whereby it will stretch the iiap widthwise as it feeds the work.

13. In a machine for cementing the channels of shoe soles, a rigid coating-'applying member having angularly related peripheral surfaces adapted for engagement respectively with the flap and the bed of a channel in a sole, a powerdriven movable flap-engaging tool for holding the channel flap in firm engagement with one of the surfaces of the applying member, and means for supporting said tool for bodily displacement toward and away from the applying roll.

le. In a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces adapted to contaci. with the flap and with the bed of the channel respectively, and a power-driven feed roll cooperating with said applying roll to hold the channel flap in engagement with one face of the applying roil, said flap-engaging feed roll being laterally displaceable.

15. In a machine for cementing the channels of shoe soles, a cement-applying roll rotatable about a substantially horizontal axis and having angularly related peripheral faces adapted to contaci. with the flap and with the bed of the channel respectively, a slidable bracket, and a powerdriven feed roll journaled in said bracket.

15. In a machine for cementing the channels of shoe soles, a cement-applying roll rotatable about a substantially horizontal axis and having angularly related peripheral faces adapted to contact with the flap and with the bed cf the channel respectively,I a slidable bracket mounted for movement along a path substantially parallel to the axis of the applying roll, and a powerdriven feed roll journaled in said bracket upon an axis extending downwardly and inwardly toward said applying roll.

17. In a machine for cementing the channelsof shoe soles, an applying roll having angularly related peripheral faces adapted to contact with the flapand 'with the bed of the channel respectively, said roll being driven in a direction to aid the progress of the work, a power-driven feed roll cooperating with the applying roll to feed the work, a siidable bracket carrying said feed roll and adjustable laterally to facilitatethe pcsitioningfof the iiap on a piece of work between said rolls, and means for transmitting power to said feed roll in any position of adjustment of the bracket.

. =8. In a machine for cementing the channels cf shoe soles, an applying roll mounted on a riorizcntal axis and having angularly related peripheral faces the inner of which is adapted tc coat the bed of the channel and the outer of which is adapted to coat the then outer face of a backturned channel flap, a horizontally slidable bracket, and a feed roll journaled in said bracket at an inclination to the axis of said applying roll, said feed roll being adapted to be inserted beneath the back-turned channel flap and cooperating with said outer face of the applying roll to grip the nap therebetween.

19. In a machine for cementing the channels of shoe soles, an applying roll on a driven shaft and having angularly related faces for coating the bed of the channel and the inner face of the channel flap respectively, cooperating supply rolls on parallel shafts, va bracket slidably mounted in a direction substantially parallel to the axis of the applying roll, a feed roll cooperating with the outer peripheral face of the applying roll and positioned upon a downwardly and inwardly in'- clined shaft, gears upon said bracket for transmitting movement from one of the parallel shafts to said inclined shaft, and means for connecting said gears to said parallel shaft in all positions of the bracket.

20. In a machine for cementing the channels 2l. In a machine for cementing the channels of shoe soles, a cement-applying roll rotatable about a substantially horizontal axis and having angularly related peripheral faces adapted to contact with the flap and with the bed of the channel respectively, a slidable bracket, a power-driven feed roll journaled insaid bracket, meansurging said roll toward the applying roll, and operatorccntrolled means for displacing the bracket and the feed roll to facilitate the insertion of a channel flap between the applying roll and the feed roll.

22. In a machine for cementing the channels of shoe soles, a cement-applying roll rotatable 'about a substantially horizontal axis and having angularly related peripheral faces adapted to contact with the flap and with the bed of the channel respectively, a slidable bracket mounted for movement along a path substantially parallel to the axis of the applying roll, a power-driven feed roll journaled in said bracket upon an axis extending'downwardly and inwardly toward said applying roll, means urging said roll toward the applying roll, and operator-controlled means for displacing the bracket and the feed roll to facilitate the insertion of a channel flap between the applying roll and the feed roll.

23. In a machine for cementing the channels of shoe soles, an applying member, a roll for holding the flap in smooth engagement with the applying member, means for driving said roll, and operator-controlled means for laterally displacing said roll, to facilitate thc positioning of a piece of Work, without interrupting the driving means.

24. In a machine for cementing the channels of shoe soles, an applying member, a ro1l for holding the flap in smooth engagement with the applying member, means for driving said roll, means for laterally displacing said roll, to facilitate the positioning of a piece of work,without interrupting the driving means, and resilient means urging said roll laterally toward the applying roll thereby to grip the flap between said rolls.

25. In a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces adapted to contact with the flap and with the bed of the channel respectively, and a power-driven flap-engaging tool cooperating with said applying roll to hold the channel flap in engagement with one face of the roll, said flap-engaging tool being upwardly yieldable under pressure of the work.

26. In a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces adapted to contact with the flap and with the bed of the channel respectively, a power-driven flap-engaging tool cooperating with said `applying roll to hold the channel flap in engagement with one face of the roll, said flap-engaging tool being upwardly yieldable under pressure of the work, and a spring for urging said tool downwardly toward the work.

27. In,a machine for cementing the channels of shoe soles, a cement-applying roll having angularly related peripheral faces adapted to contact with the flap and with the bed of the channel respectively, and a power-driven feed roll cooperating with said applying roll to hold the channel flap in engagement with one face of the applying roll, said flap-engaging feed roll being axially yieldable.

28. That step in the manufacture of shoes the soles of which have a channel and a channel nap, which consists in simultaneously applying cement to the flap and stretching it widthwise.

29. That step in the manufacture of shoes the soles of which have a channel and a channel ap, which consists in simultaneously coating the inner face of the flap and rubbing the outer face in only one direction to stretch the flap.

30. That step in the manufacture of shoes the soles of which have a channel and a channel flap, which consists in applying cement to and supporting the inner face of the flap and at the same time applying pressure to the other face of the ap in opposition to said supporting pressure and stretching the flap widthwise.

31. That step in the manufacture of shoes the soles of which have a channel and a channel flap, which consists in holding the inner surface of the flap against a cement coated surface by means of pressure applied to the outer surface of the flap and at the same time stretching the flap widthwise.

32. That step in the manufacture of shoes the soles of which have a channel and a channel flap, which consists Ain applying cement to the inner surface of the flap and the bed of the channel and rubbing at the same time the outer face in a direction always away from the base of the flap thereby to stretch it.

33. In a machine for cementing the channels of shoe soles, coacting mechanisms acting upon opposite faces of a channel flap, said mechanisms being constructed and arranged to apply cement to the ap and to stretch it widthwise, simultaneously.

34. In a machine for cementing the channels of shoe soles, means for coating the inner face of a channel flap, and means for rubbing the outer face in only one direction to stretch the flap.

35. In a machine for cementing the channels of shoe soles, a cement applying roll contacting with and supporting the inner face of a flap, and driven means pressing against the other face of the flap in opposition to said cement applying roll and constructed and arranged to stretch the flap widthwise.

36. In a machine for cementing the channels of shoe soles, an applying roll, means for supplying cement to said roll to provide a cement coated surface thereon against which the inner surface of the flap may be pressed, and driven means acting upon the outer surface of the flap to press it against the cement coated surface and at the same time to stretch the flap widthwise.

37. In a machine for cementing the channels of shoe soles, cooperating means for applying cement to the inner surface of the flap and the bed of the channel and for rubbing at the same time the outer face of the channel flap in a direction always away from the base of the flap thereby to stretch it.

JOHN B. HADAWAY. 

